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Finding the Fourth Proportional to 170,879.60, 256,319.40 and 100,895.60

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Solution

The fourth proportional to 170,879.60, 256,319.40 and 100,895.60 is: 151,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,879.60 : 256,319.40 = 100,895.60 : x
  2. Step 2: Convert to fraction form
    170,879.60/256,319.40 = 100,895.60/x
  3. Step 3: Cross multiply
    170,879.60x = 256,319.40 × 100,895.60
  4. Step 4: Simplify right side
    170,879.60x = 25,861,499,654.64
  5. Step 5: Solve for x
    x = 25,861,499,654.64/170,879.60
  6. Step 6: Final answer
    x = 151,343.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.